Principia Mathematica - Volume Three
An Unabridged, Unaltered Printing Of Volume III Of III With Additional Errata To Volumes I And II: Part V - SERIES (Continued) - Well Ordered Series - Finite And Infinite Series And Ordinals - Compact Series, Rational Series, And Continuous Series - Part VI - QUANTITY - Generalization Of Number - Vector-Families - Measurement - Cyclic Families